package com.fanfanwang.ffw.app.adapter;

import java.util.List;

import android.os.Parcelable;
import android.support.v4.view.PagerAdapter;
import android.support.v4.view.ViewPager;
import android.util.Log;
import android.view.View;

public class ViewPagerAdapter extends PagerAdapter{
	
	//界面列表
	private List<View> views;
	
	public ViewPagerAdapter (List<View> views){
		this.views = views;
	}

	//销毁arg1位置的界面
	@Override
	public void destroyItem(View arg0, int arg1, Object arg2) {
//		((ViewPager) arg0).removeView(views.get(arg1));		
	}

	@Override
	public void finishUpdate(View arg0) {
		// TODO Auto-generated method stub
		
	}

	//获得当前界面数
	@Override
	public int getCount() {
		if (views != null)
		{
//			return Integer.MAX_VALUE;
			return views.size();
		}
		
		return 0;
	}
	

	//初始化arg1位置的界面
	@Override
	public Object instantiateItem(View arg0, int arg1) {
		
		if (views.get(arg1 % views.size()).getParent() != null) {  
            ((ViewPager) views.get(arg1 % views.size())  
                    .getParent()).removeView(views.get(arg1  
                    % views.size()));  
        }  
        ((ViewPager) arg0).addView(  
                views.get(arg1 % views.size()), 0);
        Log.e("instantiateItem", arg1+ "     arg1 % views.size()  >>"+arg1 % views.size());
        return views.get(arg1 % views.size()); 
		
		
	}

	//判断是否由对象生成界面
	@Override
	public boolean isViewFromObject(View arg0, Object arg1) {
		return (arg0 == arg1);
	}

	@Override
	public void restoreState(Parcelable arg0, ClassLoader arg1) {
		// TODO Auto-generated method stub
		
	}

	@Override
	public Parcelable saveState() {
		// TODO Auto-generated method stub
		return null;
	}

	@Override
	public void startUpdate(View arg0) {
		// TODO Auto-generated method stub
		
	}

}
